Titlebook: Avian Ancestors; A Review of the Phyl Federico Agnolin,Fernando E. Novas Book 2013 The Author(s) 2013 Anchiornis.Microraptoria.Origin of bi

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Groovy Data types and Control StructuresPresent analysis invites to review previous hypotheses regarding the acquisition of evolutionary novelties towards the line to birds, especially those of appendicular skeleton and integumentary structures.

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Materials and Methods,With the aim to analyze the phylogenetic relationships of Dromaeosauridae with respect to other paravians we performed a phylogenetic analysis using the most recent version of the data matrix published by the TwiG, presented by Hu et al. (2009) and modified by Agnolín and Novas (2010).

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2191-589X ts still debate the identification of the group of coelurosaurians that most closely approaches the common ancestor of birds. The last 20 years witnessed the discovery of a wide array of avian-like theropods that has considerably amplified the anatomical disparity among deinonychosaurians, some of w

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Book 2013roup of coelurosaurians that most closely approaches the common ancestor of birds. The last 20 years witnessed the discovery of a wide array of avian-like theropods that has considerably amplified the anatomical disparity among deinonychosaurians, some of which resemble Archaeopteryx more than Deino

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Book 2013genetic relationships of these coelurosaurians and birds, we merged recently published integrative databases, resulting in significant changes in the topological distribution of taxa within Paraves. We present evidence that Dromaeosauridae, Microraptoria, Unenlagiidae, and Anchiornis + Xiaotingia fo

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2191-589X s, resulting in significant changes in the topological distribution of taxa within Paraves. We present evidence that Dromaeosauridae, Microraptoria, Unenlagiidae, and Anchiornis + Xiaotingia fo978-94-007-5636-6978-94-007-5637-3Series ISSN 2191-589X Series E-ISSN 2191-5903

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Introduction, modern birds, has been a matter of scientific debate and scrutiny throughout the history of evolutionary biology”. Although consensus exists among authors that birds evolved from coelurosaurian theropods, paleontologists still debate about the identification of the group of coelurosaurians that mos

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